Oligoryzomys microtis (Allen, 1916)

Moreira, Camila Do Nascimento, Ventura, Karen, Percequillo, Alexandre Reis & Yonenaga-Yassuda, Yatiyo, 2020, A review on the cytogenetics of the tribe Oryzomyini (Rodentia: Cricetidae: Sigmodontinae), with the description of new karyotypes, Zootaxa 4876 (1), pp. 1-111 : 74

publication ID

https://doi.org/ 10.11646/zootaxa.4876.1.1

publication LSID

lsid:zoobank.org:pub:190EC586-E14B-4AEF-A5EF-3DA401656159

DOI

https://doi.org/10.5281/zenodo.4566766

persistent identifier

https://treatment.plazi.org/id/03A587ED-3276-FF9C-83E9-F9F02F0EF87E

treatment provided by

Plazi

scientific name

Oligoryzomys microtis
status

 

Oligoryzomys microtis

Karyotype: 2n = 64 and FN = 66. Autosomal complement: one large submetacentric pair, one small metacentric pair, and 29 acrocentric pairs medium to small decreasing in size. Sex chromosomes: X, a medium subtelocentric; Y chromosome presented two different morphologies, a small metacentric, and a small acrocentric ( Gardner & Patton 1976, pp. 8, Fig. 3B View FIGURE 3 ; Aniskin & Volobouev 1999; Patton et al. 2000). Another fundamental number of 64 was reported for a sample from Mato Grosso, state of Brazil, due to the presence of one large acrocentric pair instead of a submetacentric one ( Di-Nizo et al. 2015). C-banding metaphases exhibited blocks of constitutive heterochromatin on the pericentromeric region of the autosomal pairs, with the exception of one the large submetacentric pair and five acrocentric pairs of medium-sized. The X chromosome presented the short arm entirely heterochromatic. The metacentric Y chromosome was entirely heterochromatic ( Aniskin & Volobouev 1999). G-banding was also performed ( Aniskin & Volobouev 1999; Di-Nizo et al. 2015).

Kingdom

Animalia

Phylum

Chordata

Class

Mammalia

Order

Rodentia

Family

Muridae

Genus

Oligoryzomys

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF